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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 171 · 40 questions
TalentJR

Remember (All for series, any for parallel): Series switches (one path): the bulb glows only if ALL are ON. Parallel switches (side-by-side paths): the bulb glows if ANY one is ON. Mixed: work out each path, then ask if there is at least one complete path.

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  1. 1.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when both are OFF (d) when either is ON
  2. 2.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) closed (d) broken
  4. 4.True or false: a push button flips up or down. (a) False (b) True
  5. 5.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a push button (c) a toggle switch (d) a slide switch
  6. 6.True or false: a slide switch stays where you flip it. (a) False (b) True
  7. 7.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  8. 8.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  9. 9.🔘 A bulb and a cell are joined through 5 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  10. 10.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is ON, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  11. 11.True or false: a slide switch slides side to side. (a) False (b) True
  12. 12.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a tilt switch (c) a reed switch (d) a toggle switch
  13. 13.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  14. 14.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  15. 15.What does a slide switch do? (a) flips up or down (b) slides side to side (c) closes when tipped over (d) springs back when let go
  16. 16.True or false: a toggle switch stays where you flip it. (a) True (b) False
  17. 17.🔘 A bulb and a cell are joined through 2 switches on 2 side-by-side paths, one switch on each path (parallel). What is the smallest number of switches that must be ON to light the bulb?
  18. 18.What does a tilt switch do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  19. 19.True or false: a reed switch stays where you flip it. (a) False (b) True
  20. 20.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.What does a reed switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
  22. 22.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a push button (c) a toggle switch (d) a reed switch
  23. 23.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is ON and B is OFF. Does the bulb glow? (a) No (b) Yes
  24. 24.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  25. 25.What does a toggle switch do? (a) springs back when let go (b) flips up or down (c) closes near a magnet (d) works only while pressed
  26. 26.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is OFF, B is OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  27. 27.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is ON, B is ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  28. 28.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.True or false: a tilt switch closes when tipped over. (a) True (b) False
  30. 30.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  31. 31.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
  33. 33.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is ON. Does the bulb glow? (a) Yes (b) No
  34. 34.🔘 Which kind of switch works only while pressed? (a) a push button (b) a tilt switch (c) a toggle switch (d) a slide switch
  35. 35.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is OFF and B is OFF. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  37. 37.True or false: a push button works only while pressed. (a) False (b) True
  38. 38.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  40. 40.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes

Answer key

  1. when both are ON
  2. Yes
  3. closed
  4. False
  5. a slide switch
  6. False
  7. No
  8. No
  9. 5
  10. No
  11. True
  12. a tilt switch
  13. a push button
  14. a toggle switch
  15. slides side to side
  16. True
  17. 1
  18. closes when tipped over
  19. False
  20. Yes
  21. closes near a magnet
  22. a reed switch
  23. Yes
  24. No
  25. flips up or down
  26. Yes
  27. Yes
  28. No
  29. True
  30. Yes
  31. No
  32. opens or closes the loop
  33. Yes
  34. a push button
  35. No
  36. No
  37. True
  38. Yes
  39. 3
  40. Yes

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